The present volume is a companion volume to Guenon Perspectives on Initiation, in which Guenon carefully defined the nature of initiation and of the organizations qualified to transmit it. In Initiation and Spiritual Realization he adds many details on related subjects, including various inner and outer obstacles the aspirant may face, the need for attachment to a traditional exoterism, the role of the spiritual master, and a closer examination of the degrees of spiritual realization.